<template>
  <div>
    <div class="search">
      <el-input placeholder="请输入姓名查询" style="width: 200px" v-model="name"></el-input>
      <el-button type="info" plain style="margin-left: 10px" @click="load(1)">查询</el-button>
      <el-button type="warning" plain style="margin-left: 10px" @click="reset">重置</el-button>
    </div>

        <div class="operation">
          <el-button type="primary" plain @click="handleAdd">新增</el-button>
<!--          <el-button type="danger" plain @click="delBatch">批量删除</el-button>-->
        </div>

    <div class="table">
      <el-table :data="tableData" stripe @selection-change="handleSelectionChange" :header-cell-style="{ backgroundColor: 'aliceblue',color:'#666' }" width="55" align="center">
        <el-table-column type="selection" width="55" align="center"></el-table-column>
        <el-table-column prop="scoreId" label="序号" width="70" align="center" sortable></el-table-column>
        <el-table-column prop="name" label="学生姓名"></el-table-column>
        <el-table-column prop="courseName" label="课程名称"></el-table-column>
        <el-table-column prop="score" label="成绩"></el-table-column>
        <el-table-column prop="progress" label="进度"></el-table-column>
        <el-table-column prop="semester" label="学期"></el-table-column>
        <el-table-column label="操作" align="center" width="180">
          <template v-slot="scope">
            <el-button size="mini" type="primary" plain @click="handleEdit(scope.row)">编辑</el-button>
            <el-button size="mini" type="danger" plain @click="del(scope.row.scoreId)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <div class="pagination">
        <el-pagination
            background
            @current-change="handleCurrentChange"
            :current-page="pageNum"
            :page-sizes="[5, 10, 20]"
            :page-size="pageSize"
            layout="total, prev, pager, next"
            :total="total">
        </el-pagination>
      </div>
    </div>

    <el-dialog title="学生课程" :visible.sync="fromVisible" width="40%" :close-on-click-modal="false" destroy-on-close>
      <el-form :model="form" label-width="100px" style="padding-right: 50px" :rules="rules" ref="formRef">
        <el-form-item label="学生姓名" prop="student.name">
          <el-input v-model="form.studentId" placeholder="学生ID"></el-input>
        </el-form-item>
        <el-form-item label="课程名称" prop="course.courseName">
          <el-input v-model="form.courseId" placeholder="课程ID"></el-input>
        </el-form-item>
        <el-form-item label="成绩" prop="score">
          <el-input v-model="form.score" placeholder="成绩"></el-input>
        </el-form-item>
        <el-form-item label="进度" prop="progress">
          <el-input v-model="form.progress" placeholder="进度"></el-input>
        </el-form-item>
        <el-form-item label="学期" prop="semester">
          <el-input v-model="form.semester" placeholder="学期"></el-input>
        </el-form-item>
      </el-form>

      <div slot="footer" class="dialog-footer">
        <el-button @click="fromVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "StudentCourseGrade",
  data() {
    return {
      tableData: [],  // 所有的数据
      pageNum: 1,   // 当前的页码
      pageSize: 10,  // 每页显示的个数
      total: 0,
      name: null,
      courseName: null,
      fromVisible: false,
      form: {},
      user: JSON.parse(localStorage.getItem('xm-user') || '{}'),
      rules: {
        // name: [
        //   {required: true, message: '请输入账号', trigger: 'blur'},
        // ]
      },
      ids: []
    }
  },
  created() {
    this.load(1)
  },
  methods: {
    handleAdd() {   // 新增数据
      this.form = {}  // 新增数据的时候清空数据
      this.fromVisible = true   // 打开弹窗
    },
    handleEdit(row) {   // 编辑数据
      this.form = JSON.parse(JSON.stringify(row))  // 给form对象赋值  注意要深拷贝数据
      this.fromVisible = true   // 打开弹窗
    },
    save() {   // 保存按钮触发的逻辑  它会触发新增或者更新
      this.$refs.formRef.validate((valid) => {
        if (valid) {
          this.$request({
            url: this.form.scoreId ? '/studentScore/update' : '/studentScore/add',
            method: this.form.scoreId ? 'PUT' : 'POST',
            data: this.form
          }).then(res => {
            if (res.code === '200') {  // 表示成功保存
              this.$message.success('保存成功')
              this.load(1)
              this.fromVisible = false
            } else {
              this.$message.error(res.msg)  // 弹出错误的信息
            }
          })
        }
      })
    },
    del(scoreId) {   // 单个删除
      this.$confirm('您确定删除吗？', '确认删除', {type: "warning"}).then(response => {
        this.$request.delete('/studentScore/delete/' + scoreId).then(res => {
          if (res.code === '200') {   // 表示操作成功
            this.$message.success('操作成功')
            this.load(1)
          } else {
            this.$message.error(res.msg)  // 弹出错误的信息
          }
        })
      }).catch(() => {
      })
    },
    // handleSelectionChange(val) {   // 处理选中的数据
    //   this.ids = val.map(v => v.scoreId)
    // },
    // delBatch() {   // 批量删除
    //   if (!this.ids.length) {
    //     this.$message.warning('请选择数据')
    //     return
    //   }
    //   this.$confirm('您确定批量删除这些数据吗？', '确认删除', {type: "warning"}).then(response => {
    //     this.$request.delete('/studentScore/delete/batch', {data: this.ids}).then(res => {
    //       if (res.code === '200') {   // 表示操作成功
    //         this.$message.success('操作成功')
    //         this.load(1)
    //       } else {
    //         this.$message.error(res.msg)  // 弹出错误的信息
    //       }
    //     })
    //   }).catch(() => {
    //   })
    // },
    load(pageNum) {  // 分页查询
      if (pageNum) this.pageNum = pageNum
      this.$request.get('/studentScore/selectPage', {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          name: this.name,
          courseName: this.courseName,
        }
      }).then(res => {
        this.tableData = res.data.records
        this.total = res.data.total
      })
    },
    reset() {
      this.name = null
      this.load(1)
    },
    handleCurrentChange(pageNum) {
      this.load(pageNum)
    },

  }

}
</script>

<style scoped>
/* Add your styles here */
</style>